Gallery: Update edit-mode-applicavilities even if it's a instant auto fix, and update them on undo/…

ui/file_manager/gallery/js/image_editor/image_editor.js

Index: ui/file_manager/gallery/js/image_editor/image_editor.js
diff --git a/ui/file_manager/gallery/js/image_editor/image_editor.js b/ui/file_manager/gallery/js/image_editor/image_editor.js
index 9040fe6926ceb02bf292f2fce0999e9bcdcff47e..78860293941f940c984654a9a9b8a4923f706863 100644
--- a/ui/file_manager/gallery/js/image_editor/image_editor.js
+++ b/ui/file_manager/gallery/js/image_editor/image_editor.js
@@ -301,6 +301,7 @@ ImageEditor.prototype.undo = function() {
   this.leaveModeInternal_(false, false /* not to switch mode */);
   this.commandQueue_.undo();
   this.updateUndoRedo();
+  this.calculateModeApplicativity_();
 };
 
 /**
@@ -313,6 +314,7 @@ ImageEditor.prototype.redo = function() {
   this.leaveModeInternal_(false, false /* not to switch mode */);
   this.commandQueue_.redo();
   this.updateUndoRedo();
+  this.calculateModeApplicativity_();
 };
 
 /**
@@ -635,6 +637,7 @@ ImageEditor.prototype.setUpMode_ = function(mode) {
 
   this.currentMode_.setUp();
 
+  this.calculateModeApplicativity_();
   if (this.currentMode_.instant) {  // Instant tool.
     this.leaveModeInternal_(true, false /* not to switch mode */);
     return;
@@ -645,7 +648,6 @@ ImageEditor.prototype.setUpMode_ = function(mode) {
   this.modeToolbar_.clear();
   this.currentMode_.createTools(this.modeToolbar_);
   this.modeToolbar_.show(true);
-  this.calculateModeApplicativity_();
 };
 
 /**
@@ -810,6 +812,13 @@ ImageEditor.prototype.onDoubleTap_ = function(x, y) {
 };
 
 /**
+ * Called when the user starts editing image.
+ */
+ImageEditor.prototype.onStartEditing = function() {
+  this.calculateModeApplicativity_();
+};
+
+/**
  * A helper object for panning the ImageBuffer.
  *
  * @param {!HTMLElement} rootContainer The top-level container.